Windslow, a boy in a wheelchair and his stepsister, Hillary, undo spells that hide the magic Book of Second Chances. When they sleep, the book transports them to the world of Gabendoor.
Windslow meets three wizards responsible for safeguarding the book. Fistlock, the evil ruler of Gabendoor, is determined to have the book at any cost. Everyone wants the book, but no one can solve the secrets to unlock the book’s magic which they believe grants unlimited second chances. Windslow wants the book to walk again. Hillary wants it to save Gabendoor. Fistlock wants it to expand his power.
Hillary travels with three strange Sallyforth sisters who know many of the book’s secrets. The trouble is, one sister always lies, one tells the truth, and one sometimes lies and sometimes doesn’t. An oracle calls Hillary and Windslow the Children of the Summer Wind, and gives Hillary clues to understanding riddles that appear in the book each time Windslow survives a dangerous situation.
As Hillary and Windslow struggle to solve the book’s mysteries Fistlock prepares his strongest and deadliest magic in an effort to stop the Children of the Summer Wind. Time runs out for everyone and a risky chance may be the only choice left. Who survives depends on who takes that final chance.